Window sash



Jpn. 15,-- 1929. 1,699,013

- I A; w. NELSON WINDOW SASH Fil dm'w. 17, 1927 Hal Patented Jan. 15, 1929.

UNiTED STATES PATENT OFFICE. 4

WINDOW SASH.

Application filed November 17, 1927.

While the invention relates primarily to window sashes and will so be described, it is to be understood at the outset that it is also applicable to doors embodying a glass pane.

Prior to my invention, sashes have been produced provided with grooves in their in ner edges to receive the edge portions of panes of glass, one side member or rail of the sash being detachable to permit insertion or removal of the pane, as occasion may demand.

Then too, spring devices have been used within the grooves to yieldably hold the glass pane tightly against one side of said grooves. It is the object of my invention however to provide a new and improved construction in which exceptionally simple and inexpensive, vet eliicient, reliable, and easily applied and "(ilrlOVQd spring devices, are provided to hold glass pane.

vVith the foregoing in view, the inventicn resides in the novel subject matter hereinafter described and claimed, description being accomplished by reference to the accompanying drawing.

Fig. l is a fragmentary side elevation of a sash improved in accordance with my invention. is a vertical section on line 2-2 0i 3 is a horizontal section on line 3-3 of lfii l is a side elevation of one of the springs.

In the drawing above briefly described, the numeral. 5 denotes a sash whose upper rail 6 is detachahly secured in place by screws such as 7. the usual mortise and tenon Joints being provided at the sash corners. At two cor- 1 these joints are held assembled by the pins 8, whi e screws such as l are used l of such pins, at the other two corners.

The inner edges of the sash are formed with registering grooves 9, and the grooves may extend entirely to the horlzontal and vertical edges of the sash, so that the open lower ends lO of the two vertical grooves, SBIVG tO drain out any Water which would otherwise collect in the lowermost groove. This water of course received by the window sill and so ns off without producing any harmful results. in which connection it may be explalned that the groove walls may be effectively painted before assembly of the sash.

A glass pane 11, has its edge portions received in the grooves 9, the thickness of said pane being less than the width of the grooves.

Serial No. 233,902.

Short, one-piece strip-metal springs 12 are disposed under tension between the pane 11 and one side of each groove 9, thereby tightly holding the pane against the opposite side of said groove. Each spring 12 is longitudinally bowed and has its crest 13 disposed in contact with the pane, while the ends of said spring are formed with sharpened edges 14 which bite into the side wall of the groove and thus hold the spring against slippage. Preferably, the end portions of the spring 12 are tapered so that the length of the sharp edges 14 is decreased, permitting them to more readily penetrate the wood, under the inherent resiliency of said spring, and permitting passage of water at said ends.

The pane 11 is inserted with the detachable rail 6 removed, and said rail is then secured in position. Then, the springs 12 which normally have a greater curvature than shown in Figs. 2 and 3, are partially straightened out and inserted into the grooves 9, as shown in said figures. When so positioned, they tightly hold the pane against the inner sides of the grooves 9 and thus effectively take the place of putty, although they are in reality more efficient, as the pane is permitted to yield under wind pressure, without danger of loosening its securing means.

Whenever a pane is broken, it may be easily removed and another substituted, with the use of no tools other thana screw driver.

The sash shown, is a lower sash. When adapting the invention to an upper sash, its lower rail is made detachable and the. heads of the screws 7 are countersunk into the inner side of said rail. I

On account of the excellent results obtainable from the details disclosed, they are preferably followed. However, within-the scope of the invention as claimed, minor variations may be made.

I claim 1. In a sash or analogous device having registering grooves in the inner edges of its side members, and a pane whose edges are received in said grooves; a plurality of onepiece strip-metal springs disposed under tension between said pane and one side of each groove, each of said springs being longitudinally bowed and having the crest of its bow in contact with the pane, the ends of each spring having sharp edges which bite into said side of the grooves to prevent slippage of the springs.

2. In a sash or analogous device having contact With the pane, the ends of each spring being tapered and having sharp edges which bite into said side of the grooves to prevent slippage of the springs.

In testimony whereof I have hereunto afiixed my signature.

ARTHUR W. NELSON. 

